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| 摘要: |
| 采用C 18 固相萃取柱富集，乙酸乙酯、二氯甲烷和丙酮混合溶剂以1∶1∶1比例洗脱、自动固相萃取的前处理方法，气相色谱质谱连用，分析水源水中33种半挥发性有机物，并与液液萃取前处理方法进行比较。结果表明：在500~5 000 μg/L范围内，33种SVOC线性良好，相关系数＞0.990，回收率为70.1%~114.2%，相对标准偏差为2.4%~13.4%，方法检出限为0.06~0.25 μg/L；而且该方法较液液萃取，检出样品种类多。适用于饮用水源水中半挥发性有机物的监测。 |
| 关键词: 固相萃取 GCMS 水源水 半挥发性有机物 |
| DOI： |
| 分类号:X832；O657.63 |
| 文献标识码:B |
| 基金项目: |
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| Analysis of Trace Semi volatile Organic Compounds from Drinking Source Water Using SPE–GCMS Technique |
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WANG Hai tang， LIU Hao
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| Abstract: |
| A GCMS method was established for detecting 33 trace semi volatile organic compounds （SVOCs） in drinking source water. Samples were treated with C18 automated solid phase extraction （SPE） and eluted by a mixed solvent of CH<sub>2</sub>Cl<sub>2</sub>， ethyl acetate and acetone. This method was compared with the liquid liquid extraction （LLE） pretreatment method. The results showed that good linearity was obtained in the range of 500~5000 μg/L for 33 SVOC with the correlation coefficient higher than 0.990. The recovery was between 70.1% and 114.2%. The relative standard deviation was between 2.4% and 13.4%. The method detection limit was between 0.06 and 0.25 μg/L. Compared with LLE， this method could detect more kinds of samples. It was suitable for monitoring SVOC in drinking water. |
| Key words: SPE GCMS Source water Semi volatile organic compounds |
